package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)){
            //生成验证码
            int code = ValidateCodeUtils.generateValidateCode(4);
            log.info("验证码code:{}",code);

            //发送验证码
            //SMSUtils.sendMessage("瑞吉外卖","SMS_272440185",phone,code);

            //code存入session
            //session.setAttribute(phone,code);
            //将生成的验证码缓存到Redis中，并且设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);


            return R.success("手机验证码发送成功");
        }

        return R.error("手机验证码发送失败");
    }


    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.info("map:({}:{})",map.get("phone"),map.get("code"));
        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从Redis中获取缓存的验证码
        if (redisTemplate.opsForValue().get(phone) == null){
            return R.error("验证码错误，请重新获取");
        }
        String codeInSession = redisTemplate.opsForValue().get(phone).toString();

        if (codeInSession != null && codeInSession.equals(code)){
            //如果对比成功，则登录成功
            //判断该手机用户是否为新用户
            LambdaQueryWrapper<User> userQuery = new LambdaQueryWrapper<>();
            userQuery.eq(User::getPhone,phone);
            User user = userService.getOne(userQuery);
            if (null == user){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            //如果登陆成功，删除redis中缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }
        return R.error("登陆失败");
    }
}
